Kypha, a spinout of Saint Louis University developing a blood test for managing inflammation, has secured $2.1m to further development, according to a filing with the Securities and Exchange Commission.

Founded in 2009, the company has raised $7.15m in external fundraising. Arsenal Capital Partners, Billiken Angels Network, BioGenerator, Missouri Technology Corporation, and Serra Ventures are all existing backers, but it is not known whether they participated in the latest round.